Arbitrary PHP code execution in Drupal - CVE-2012-5653

Vulnerability identifier: #VU465

CSH Severity: Low

CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2012-5653

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote user to cause arbitrary code execution on the target system.
The weakness exists due to improper munging of uploaded files name. The vulnerability allows attacker with server permission to upload a specially named file that can bypass the filename munging and cause arbitrary code execution.
Successful exploitation of the weakness results in arbitrary code execution on the vulnerable system.

Drupal
Fedora
drupal6
drupal7

Update 6.x to 6.27.
https://www.drupal.org/drupal-6.27-release-notes
Update 7.x to 7.18.
https://www.drupal.org/drupal-7.18-release-notes

drupal6 - addressed in versions 6.27-1.el5, 6.27-1.el6
drupal7 - addressed in versions 7.18-1.el5, 7.18-1.el6

• https://www.drupal.org/SA-CORE-2012-004

• Arbitrary PHP code execution in Drupal Drupal
• Fedora EPEL 6 update for drupal6, drupal7
• Fedora EPEL 5 update for drupal6, drupal7